CHEN Ting-ting,HE Kang-ning.Canopy Extinction Characteristics of Elm in Different Density in Semi-arid Region on Loess Plateau[J].Research of Soil and Water Conservation,2008,15(01):209-211,215.
黄土半干旱区不同密度人工白榆林消光特性研究
- Title:
- Canopy Extinction Characteristics of Elm in Different Density in Semi-arid Region on Loess Plateau
- Keywords:
- net radiation; leaf areas index; extinction coefficient
- 分类号:
- S718.3
- 摘要:
- 通过对山西省方山县不同密度人工白榆林（Ulmuspumila）5-10月典型晴天净辐射在林冠内垂直分布的实测资料分析，根据BeerLambert方程，结合林分生长季内的叶面积指数动态变化，研究了密度为1.5m×2m和1.5m×4m的白榆林消光系数的日变化过程和季变化过程，同时对影响消光系数的因素进行分析。结果表明：消光系数的日变化过程主要受太阳高度角的影响，而季变化过程主要受叶面积指数的影响；密度对消光系数的影响主要是通过对林冠结构的调整而实现的。
- Abstract:
- Based on the data of forest-elm in different density about the net radiation’s distribution and canopy structure measured in Fangshan, Shanxi Province, and accounting to Beer Lambert’ equation and considering the dynamic change of the leaf areas index (LAI), the paper selected the density in 1.5 m× 2 m and 1.5 m× 4 m forest-elm on study, researched the changing process of extinction coefficient in a day and in a growing season, at same time analyzed the factors affecting the extinction coefficient.The result showed that, the changing process of extinction coefficient in a day mainly affected by solar altitude; while the changing process of extinction coefficient in a growing season mainly affected by leaf areas index (LAI); and the effect of density to the changing process of extinction coefficient is carried out by modulating the structure of canopy.
参考文献/References:
[1] 贺康宁, 张学培, 赵云杰, 等.晋西黄土残源沟壑区防护林热收支特性及蒸散研究[J].北京林业大学学报, 1998, 20(6):7-13.
[2] 王克勤, 陈奇伯.金沙江干热河谷人工生态林的林分环境分析[J].中国水土保持科学, 2003, 1(1):74-79.
[3] 康绍忠, 刘晓明, 熊运章.土壤-植物-大气连续体水分传输理论及其应用[M].北京:水利水电出版社, 1994.
[4] 高晓飞, 谢云, 王晓岚.冬小麦冠层消光系数日变化的实验研究[J].资源科学, 2004, 26(1):137-140.
[5] 刘志刚, 马钦彦, 潘向丽, 等.华北落叶松人工林放叶过程中的辐射特征[J].生态学报, 1997, 17(5):519-524.
[6] Vose J M, Wayne T S.Assessing seasonal leaf area dynamics and vertical leaf distribution in eastern white pine (Pinus strobes L.) with a portable light meter[J].Tree Physiology, 1990(7):125-134.
[7] 李德志, 藏润国.森林冠层结构与功能及其时空变化研究进展[J].世界林业研究, 2004, 17(3):12-16.
[8] 何艺玲, 傅懋毅.人工林林下植被的研究现状[J].林业科学研究, 2002, 15(6):727-733.
[9] 刘晨峰, 尹婧, 贺康宁.林下植被对半干旱区不同密度刺槐林地土壤水分环境的指示作用[J].中国水土保持科学, 2004, 2(2):62-67.
[10] 桑卫国, 郑豫, 张德全.暖温带落叶阔叶林林冠层表面辐射通量动态与特点[J].东北林业大学学报, 2001, 29(3):40-43.
[11] 贺康宁, 田阳, 张光灿.刺槐日蒸腾过程的Penman-Monteith方程模拟[J].生态学报, 2003, 23(2):251-258.
相似文献/References:
[1]晋凡生,萧复兴.中子水分仪在旱塬地玉米农田土壤水分研究中的应用[J].水土保持研究,2000,7(04):65.
JIN Fansheng,XIAO Fuxing.The Application of the Neutron Probe in the Research of Farmland Soil Moisture of Dryland[J].Research of Soil and Water Conservation,2000,7(01):65.
[2]李孝广,毕华兴,刘胜,等.Penman-Monteith蒸散模型及其在森林下垫面中参数的确定[J].水土保持研究,2005,12(06):257.
LI Xiao-guang,BI Hua-xing,LIU Sheng,et al.Penman-Monteith Evapotranspiration Model and Calculations of Its Parameters in Forest Underlying Surface[J].Research of Soil and Water Conservation,2005,12(01):257.
[3]林超文,陈一兵,黄晶晶.中国四川间作地区作物高度、覆盖度和叶面积指数的时间变化[J].水土保持研究,2007,14(02):72.
LIN Chao-wen,CHEN Yi-bing,HUANG Jing-jing.Temporal Variation of Plant Height, Plant Cover and Leaf Area Index in Inter-cropped Area of Sichuan, China[J].Research of Soil and Water Conservation,2007,14(01):72.
[4]戚龙海,党廷辉,陈璐.旱塬冬小麦水分利用特征及对施肥的响应[J].水土保持研究,2009,16(03):105.
QI Long-hai,DANG Ting-hui,CHEN Lu.The Water Use Characteristics of Winter Wheat and Response to Fertilization on Dry-land of Loess Plateau[J].Research of Soil and Water Conservation,2009,16(01):105.
[5]王爱娟,章文波.林冠截留降雨研究综述[J].水土保持研究,2009,16(04):55.
WANG Ai-juan,ZHANG Wen-bo.Reviews of Vagetation Interception of Rainfall[J].Research of Soil and Water Conservation,2009,16(01):55.
[6]王磊,李雅文,樊廷录,等.适宜机械收获株行距对黄土旱塬春玉米产量及水分利用效率的影响[J].水土保持研究,2017,24(05):363.
WANG Lei,LI Yawen,FAN Tinglu,et al.Effect of Row Spacing on Grain Yield and Water Use Efficiency of Mechanical Harvest Spring Maize in Dryland of the Loess Plateau[J].Research of Soil and Water Conservation,2017,24(01):363.
[7]严恩萍,林辉,洪奕丰,等.杉木人工林叶面积指数估测及影响因子分析[J].水土保持研究,2013,20(04):75.
YAN En-ping,LIN Hui,HONG Yi-feng,et al.Analysis on LAI Estimation and Its Effecting Factors for Chinese Fir Plantation[J].Research of Soil and Water Conservation,2013,20(01):75.
[8]吴晓霞,顾祝军.时间尺度对草地水土保持效应定量研究的影响[J].水土保持研究,2014,21(05):59.
WU Xiao-xia,GU Zhu-jun.Influence of Time Scale on the Quantitative Study of Soil and Water Conservation in Grassland[J].Research of Soil and Water Conservation,2014,21(01):59.
备注/Memo
收稿日期:2006-7-6
基金项目:教育部科学技术研究重大项目（10407）；国家自然科学基金项目（30371172）
作者简介:陈婷婷（1981- ），女，在读硕士，主要从事林业生态工程研究。
通讯作者:贺康宁，男，教授，博导。